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Share-Based Compensation - Additional Information (Details)
¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Thousands
12 Months Ended
Aug. 12, 2024
CNY (¥)
¥ / shares
shares
Aug. 12, 2024
USD ($)
$ / shares
shares
Jun. 01, 2023
CNY (¥)
¥ / shares
shares
Feb. 05, 2021
¥ / shares
shares
Feb. 17, 2020
¥ / shares
shares
Jun. 30, 2019
¥ / shares
shares
Jan. 22, 2019
CNY (¥)
shares
Jan. 22, 2019
$ / shares
Feb. 28, 2025
CNY (¥)
¥ / shares
Feb. 28, 2025
USD ($)
Feb. 29, 2024
CNY (¥)
¥ / shares
Feb. 28, 2023
CNY (¥)
Feb. 28, 2019
CNY (¥)
Feb. 28, 2025
USD ($)
Jun. 30, 2015
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Shares option granted 1,901,790 1,901,790 1,155,000       460,000                
Shares option granted per share | (per share) ¥ 0.58 $ 0.08 ¥ 2         $ 4.6 ¥ 7.28   ¥ 14.40        
Incremental compensation cost ¥ 3,170 $ 435 ¥ 453       ¥ 3,967                
Compensation expense | ¥                     ¥ 400   ¥ 127    
Incremental compensation cost amortized over remaining vesting period | ¥     ¥ 53       ¥ 3,840                
Share-based compensation expenses                 ¥ 5,026 $ 690 ¥ 3,122 ¥ 3,168      
Unrecognized compensation cost related to non-vested share options                 ¥ 3,050         $ 419  
Unrecognized compensation cost expected to recognized over a weighted-average period                 3 years 4 months 9 days 3 years 4 months 9 days          
Directors                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Vesting period       4 years                      
Shares option granted       860,000                      
Weighted average grant date fair value of options granted per share | ¥ / shares       ¥ 13.24                      
Options expiration period       10 years                      
Officers                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Vesting period       4 years                      
Shares option granted       860,000                      
Weighted average grant date fair value of options granted per share | ¥ / shares       ¥ 13.24                      
Options expiration period       10 years                      
Employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Vesting period     4 years 4 years 4 years                    
Shares option granted     100,000 860,000 80,000 360,000                  
Weighted average grant date fair value of options granted per share | ¥ / shares     ¥ 17.75 ¥ 13.24 ¥ 10.03 ¥ 10.46                  
Options expiration period     10 years 10 years 10 years                    
Independent Directors, Executive Officers and Employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Shares option granted 650,000 650,000                          
Weighted average grant date fair value of options granted per share | (per share) ¥ 8.99 $ 1.24                          
Maximum | Independent Directors, Executive Officers and Employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Vesting period 4 years 4 years                          
Minimum | Independent Directors, Executive Officers and Employees                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Vesting period 2 years 2 years                          
2015 Option Plan and 2017 Option Plan | Maximum                              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                              
Number of ordinary shares authorized to issue                             4,201,330